I'm at the height limit for a Regular sleeping bag. Should I size up?

Usually yes. 

We publish maximum user height because it’s a more practical way to choose the right size.

• The usable length of a sleeping bag isn’t fixed – it depends on how much volume the sleeper takes up and how tightly the hood is cinched. This can change the effective length by up to 10 cm.

Which size should I choose if I’m close to the maximum height?

• If you’re at or near the maximum height listed for a Regular, we recommend sizing up to the Long (unless weight is critical, see below). 

• A too-short bag may cause you to compress the insulation in the hood and footbox, which may lead to cold spots.

• Long sizes also provide a bit more girth, which can be helpful if you have a larger body build.

Any exceptions?

Yes. If weight is your top priority, for example, if you’re a thru-hiker or bikepacker looking at ultralight models like the Spark or Spark Pro,  you may still choose the Regular size, even at the maximum listed height, to keep your gear as light as possible.